Pipe-section



H. D. AND F. F. KORS.

PIPE SECTION.

APPLICATION FILED, FEB. 8, 1918.

1,366,694. Patented Jan. 25,1921.

2 SHEETS-SHEET I.

H. D. AND F. F. KOBS.

PIPE SECTION. APPLICATION HLED FEB. 8, 1918.

Patented Jan, 25, 1921.

2 SHEETS-SHEET 2 UNITED STATES PATENT OFFICE.

HARRY D. KORS AND FRANK IF. KORS, OF INDEPENDENCE, KANSAS.

rirn-snorron.

Specification of Letters Patent.

Patented James, 1921.

Application filed February 8, 1918. Serial No. 216,101.

To all whom it may concern:

Be it known that we, HARRY D. Kons and F RANK F. Kons, citizens of the United States, residing at Independence, in the county of Montgomery, and State of Kansas, have invented a new and useful improvement in Pipe-Sections, of which the following is a specification.

Our invention relates, more particularly, to pipe sections for forming the casings of deep wells, such as gas, oil or water wells.

As a preface to the following description,

it may be stated that it is common practlce in the art of sinking wells to provide as a lining for the wells, a casing formed of sections supplied to the well-location and connected together to form water-tight joints, as the lowering of the casing into the well progresses. It is also common practice where a well is found to be not productive or after operation becomesnon-productive, toremove the casing of the well for use in another well. Thus, it is desirable that the casing be provided of such construction that it may be sunk into the well to form a water-tight conduit, through which the contents of the well may pass, and be withdrawn from the well, as for example under the conditions above stated, and in devising our improved construction, both of the above-referred-to conditions have been taken into consideration.

Casings for wells as hitherto provided, have commonly been formed of sections of metal pipe with suitable means connecting them in end-to-end relation for the purposes above stated, but such practice presents the great objection of high costs.

Our object is to provide a simple and economical construction of easing which, in connection with our more particular object, may be sunk into a well during the sinking of the latter, or after-the latter has been our invention, the structure being wholly broken away at intervals intermediate its ends and with certainparts of the portions illustrated, removed. Fig. 2 is a view in elevation, partly sectional, of a ring for connecting together the adjacent ends of the pipe-sectlons. Fig. '3 is an enlarged section taken at the line 3 on Fig. 1 and viewed in the direction of the arrow. Fig. 4: is an enlarged section taken at the line 4 on Fig. 1 and viewed in the direction of the arrow. Fig. 5 1s a view in elevation of the completed pipe-section. Fig. 6 is a view in elevation of the two adjacent ends of alining casing-sections, showin them connected together by the ring of Fig. 2; and Fig. 7 an enlarged view in sectional elevation of one of the similar ends of the casingsection.

In constructing the casing-section in accordance with the preferred illustrated embodiment of our invention, we provide the nipples 8, which are preferably formed of steel and form the-opposite ends of the finished casing-section. These nipples are of reduced internal and external diameter at their outer end portions 9 to cause the bore 10, extending therethrough, to be of less diameter than presented by their inner end portions 11. The nipples 8 are connected together by any desirable connecting medium, as for example the bars 12, preferably of steel, which extend lengthwise of the casingsection and preferably in parallel spaced relation to afford an annular series thereof, as illustrated. The bars 12 may be connected with the nipples 8 in any desirable manner, in the construction shown, the ends of these bars abutting the ends of the nipples and secured thereto as by welding.

Any desirable filler, as for example ccment, may be inserted into the openings provided in the frame-work to render the wall of the casing water-tight, the filler thus provided and represented at 14, preferably exconditions render it desirable transverse reinforcing members may be employed, which may be in the form oi rings, as forexample as shown at 17 and which may be placed. at

any desirable intervals along the length of the casing-section, the rings 17 being shown as extending acent the inner sides of the bars 12 and connected ther' with in any desirable manner not shown. Furthermore, it ispreferred that there be associated with the reinforcing frame-work above described, relatively fine-mesh reinforcing material, as for example wire iabric, represented at 18, and which. is provided in the form of a cylinder extending substantially the full length of the pipe-section and into'the portionsll oi? the nipples and as shown lying acent the inner surface of the reinforcing frame-work, as more particularly illustrated in Fig. 3.

In the formation of the casing section, the filler would be molded about the reinforcing members thereof preferablyrto the position as is sh wn (i-BL above explained, by the use ofany suitable means, as by a mold having a collapsible core, as will be readily understood by those skilled in the art.

The outer ends of the nipples 8 are preferably externally screw-threaded, asrepresented at 19, at which portions they are adapted to screw into a connecting ring 20,

which serves as means for tightly connecta particular constructionembodying our in vent-ion, we do not wish to be understood as intending to lim t it thereto, as the same may be variously modlfied and altered wlthout departing from the spirit of our invention, it being our intention to claim our inis vention as fully and completely as theprior state of the art will permit.

What we claim new'and desire to'secure by Letters Patentis 1. A pipe, section formedat its ends with hollow members having their outer ends oi reduced diameter, inc-ans connected with said members and forming an open-work structure, and a filler substance filling the spaces in said open worlr structure and extending into those portions or" said members which are of larger diameter, with the inner surface. of the mass formedv of said filler substance extending substantially flush with the inner surface of those portions of said members which are of smaller diameter.

2. A pipe-section formed at its ends with hollow members having their outer ends of reduced diameter, a series of bars connected with said members and forming an openworlr structure, and a filler substance filling the spaces in said open-work structure and extending into those portions of said memhere which are of larger diameter, with the inner surface of the mass formedof said iiller material extending substantially flush with the inner surfaces of those portions of said members which are of smaller diameter.

A pipe section formed at its ends with hollow members having their outer ends of reduced internal diameter, and body portion interposed between said members and extending at its ends into those portions of said members which areoi larger internal ,diameter, with the inner surface of said body portion extending substantially tlush with the inner surfaces of those portions of said members which are of smaller diameter.

4. A pipe-section formed at its ends with hollow members having their outer ends of reduced internal diameter and containing recesses intheir inner ends, and a body por tion interposed between said members and extending; at its ends into tllQSfi-QOIiJlOl'iS of said members which are 01 gl eater internal diameter and interlocking with said members at said recesses, the inner surface of said body portion extending substantially iiush with the inner surface of those portions of said members which are of smaller diameter. I

A pipe-section formed at its ends with hollow members in the form of nipples with their outer ends o1 reduced internal diameter and provided with threads, an annular scries of bars spaced apart and extendinglengthwise of said section and rigidly con? nected at their opposite ends with those portions of said nipples which meet larger diameter, and a body of fillerlocated between aid nipples and extending into the spaces between said bars and extendinginto those portions of said nipples whichare of greater diameten the inner surface of the cement portion of the section extending substantially flush with the inner surface of those portions of the nipples which are-of smaller diameter. j

6. A pipe section formed atits ends with means adaptingit to be connectedwith asimilar section,;tension elements. extending be.-

tween said means and. forming an open work structure and OPQIELEIVGLV engaging said means to cause iorces tending tomove said means ina direction away each other to be'resisted by saidelements, and afiller substance extending between and underneath said tension elements, with the outer surface of said substance flush with the outer surface of said tension elements.

7. A pipe section formed at its ends with means adapting it to be connected with a similar section, a plurality of bars extending lengthwise of the section and between said means and forming an open-work structure, said bars operatively engaging said means to cause forces tending to move said means in a direction away from each other to be resisted by said bars, and a filler substance extending between and underneath said bars with the outer surface of said substance flush with the outer surface of said bars.

8. A. pipe section formed at its ends with hollow members with means adapting them to be connected with similar sections, tension elements extending between said hollow members and forming an open-work structure and operatively engaging said hollow members to cause forces tending to move said hollow members in a direction away from each other to be resisted by said elements, and a filler substance extending between and underneath said tension elements, with the outer surface of said substance flush with the outer surface of said elements.

9. A pipe section formed at its ends with hollow members, tension elements extending from one to the other of said hollow members and forming an open-Work structure, said elements operatively engaging said hollow members to cause forces tending to move the latter in a direction away from each other to be resisted by said elements, reinforcing fabric, a filler substance extending between and underneath said tension ele ments and inclosing said fabric, with the outer surface of said substance flush with the outer surface of said tension elements, the whole constituting a unitary structure, and means independent of said elements, adapting said section to be connected at its ends with similar sections.

10. A pipe section formed at its ends with hollow members, tension elements extending from one to the other of said hollow members and forming an open-work structure,.

low members to cause forces tending to move the latter in a direction away from each other to be resisted by said elements, a reinforcing fabric, a reinforcing ring extending transversely of said pipe section, a filler substance extending between and underneath said tension elements and inclosing said ring and fabric, with the outer surface of said substance flush with the outer surface of said tension elements, the whole constituting a unitary structure, and means independent of said elements adapting said section to be connected at its ends with similar sections.

11. A pipe section formed at its ends with hollow members, tension elements extending from one to the other of said hollow members and forming an open-work structure, said elements operatively engaging said hol low members to cause forces tending to move the latter in a direction away from each other to be resisted by said elements, a filler substance extending between and underneath said tension elements, with the outer surface of said substance flush with the outer surface of said elements, the whole constituting a unitary structure, and means inclependent of said elements adapting said section to be connected at its ends with similar sections.

12. A pipe section formed at its ends with hollow members, tension elements extending from one to the other of said hollow members and rigidly connected therewith and forming an open-work structure, said ele ments operatiyely engaging said hollow members to cause forces tending to move the latter in a direction away from each other to be resisted by said elements, a filler substance extending between and underneath said tension elements, with the outer surface of said substance flush with the outer sur face of said tension elements, the whole constituting a unitary structure, and means independent of said elements adapting said section to be connected at its ends with similar sections.

HARRY D. KORS. FRANK F. KORS. 

